Aeohibald l



- wardly-oblique draft.

i UNITED STATES PATENT OFFICE.

ARCHIBALD L. GHUBB, OF GRAND RAPIDS, MICHIGAN.

PLow.

SPECIFICATION forming part of Letters Patent No. 225,341, dated March 9,1880.

Application led July 10, 1879.

To all 'whom 'it may concern:

Be it known that I, ARCHIBALD L. GHUBB, of Grand Rapids, in the countyof Kent and State of Michigan, have invented an Improvement in Plows, ofwhich the following is a specification.

The nature of this invention relates to certain new and usefulimprovements in the construction of plows; and the invention consists,first, in the peculiar manner of supporting the colter; and, second, inthe peculiar means for adjusting the handles both horizontally andvertically, the pivot-bar of the handles acting as a spreader, extendingfrom the land-side to the mold-board, as fully hereinafter explained.

In the drawings, Figure 1 is a side elevation.

2 is a re'ar elevation, partially in perspective. Fig. 3 is a detachedview, showing devices foradjustin-g and securingthe lower ends of thehandles. Fig. 4 is a sectional perspective, showing' the point andsection of the moldboard and cutterstandard with cutter removed.

In the accompanying drawings, which form a partrof this specification, Arepresents the iron beam of a plow. That portion, a, forming thestandard is curved toward the'front, l

as is usual. The beam is then projected to the front in a horizontalline on its lower edge, to a point in advance of the cutter, and thenabruptly curves downward, and terminates at the end in the usual form,and, by being so constructed, greater depth of room is provided betweenthe beam and the operating fore parts of the plow, so that thetendencyto clog or choke between the cutter (or jointer, where one isused) and the beam is materially lessened. l

To secure the colter B in place' a standard, C, the outer face of whichis lush with the land-side D, is let into the groove b near the junctionof Ythe mold-board with the point, where it is secured by means of thescrew or bolt c, which is so inserted as to have a down- To the uppercurved end ot' this standard the colter B is rigidly secured, with itslower end or point resting in the chilled groove in the plow-point. The

point and standard, being secured together, are put in place, and thebolt cis drawn tightly, its downwardly oblique direction forcing' thelower end of the cutter B into the chilled groove d, and holding itthere rigidly in place. This groove should be chilled to preventabrasion caused by sand or dust working into the same when the plow` isin operation. This chilling may be done by employing a piece of steel oriron of suitable shape in the sand mold, as a core-print is usuallyemployed.

El represents a spreader-bar provided with screw-threads, and is ofproper length, when in place and adjusted, to prevent the landside andmold-board from being compressed toward each other at or near their rearends. This bar passes through the land-side D and handles F, and isinserted into the stud e in the inner face of the mold-board G. Nuts f,on either side of the handles, and outside of Vthe land-side, securethis bar in position, and

form a fulcrum and fastening for the handles, uponwhich, by means of thenuts f, they may -be laterally adjusted, and upon which they turn when areadjustment of their pitch is required, as hereinafter described.

H is a bracket which is secured to or cast with the standard orland-side, as preferred, and is provided with a slot, g, through whichand the lower ends of the handles the bolt h passes, by means of whichthe handles are secured to said bracket and the pitch of the handles isregulated.

The standard carrying the plow-wheel can be attached to either side ofthe beam, thus admitting of balancing the plow more perfectly than, canotherwise be done.

What I claim as my invention is- 1. In a plow, the colter standard C,let into a groove in the land-side and secured therein iiush with theland -side, in combination with the eolter B, secured to such standardat its upper end, and resting at its lower end in a groove, d, formed inthe plow-point, substantially as described and shown.

2. In a plow, the combination, with the land-side and mold-board and thehandles F, of the spreader-bar E, bracing the land-side and mold-boardapart and Vpassing through the handles which are pivoted thereon, andthe bracket H, having slot g and bolt h, for adjusting thehandlesvertically, substantially as described and shown.

' ARCHIBALD L. GHUBB. Witnesses:

` HENRY KNIGHT,

D. B. SUMNER.

